Period
to 23 November 2017

The following table provides summary statistics for permanent job vacancies with a requirement for JNI skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited JNI over the 6 months to 23 November 2017 with a comparison to the same period in the previous 2 years.

Java Native Interface (JNI)
UK
6 months to
23 Nov 2017
Same period 2016 Same period 2015
Rank 1132 1217 1270
Rank change year-on-year +85 +53 +21
Permanent jobs citing JNI 57 20 26
As % of all permanent IT jobs advertised in the UK 0.032% 0.011% 0.012%
As % of the Libraries, Frameworks & Software Standards category 0.079% 0.027% 0.031%
Number of salaries quoted 28 18 30
UK median annual salary £45,000 £70,000 £60,000
Median salary % change year-on-year -35.71% +16.67% -4.00%
10th Percentile £33,375 £35,000 £36,800
90th Percentile £95,000 £86,500 £77,500
UK excluding London median annual salary £40,000 £70,000 £75,000
% change year-on-year -42.86% -6.67% +115.83%

JNI is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
UK
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 72188 74049 82710
As % of all permanent IT jobs advertised in the UK 40.07% 39.01% 38.03%
Number of salaries quoted 60025 64270 70733
UK median annual salary £50,000 £47,500 £45,000
Median salary % change year-on-year +5.26% +5.56% +1.12%
10th Percentile £29,750 £28,750 £27,500
90th Percentile £77,500 £76,250 £73,750
UK excluding London median annual salary £42,500 £42,500 £40,000
% change year-on-year - +6.25% -

JNI
Job Vacancy Trend

Job postings citing JNI as a percentage of all IT jobs advertised.

Job vacancy trend for JNI in the UK

JNI
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing JNI.

Salary trend for JNI in the UK

JNI
Salary Histogram

The salary distribution of IT jobs citing JNI over the 6 months to 23 November 2017.

Salary histogram for JNI in the UK

JNI
Top 9 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing JNI within the UK over the 6 months to 23 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +75 54 £45,000 -35.71%
London +34 33 £60,000 -14.29%
UK excluding London +53 22 £40,000 -42.86%
East of England - 10 £40,000 -
North of England +10 8 £35,000 -50.00%
North East - 7 £35,000 -
South East - 3 £45,000 -
Wales +15 1 £40,000 +14.29%
North West -22 1 - -

For the 6 months to 23 November 2017, IT jobs citing JNI also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads with a requirement for JNI.

1 53 (92.98%) Java
2 49 (85.96%) C++
3 34 (59.65%) Linux
4 30 (52.63%) C
5 29 (50.88%) Software Engineering
6 21 (36.84%) Windows
7 19 (33.33%) Android
8 18 (31.58%) SDLC
9 17 (29.82%) Git (software)
10 15 (26.32%) Multithreading
10 15 (26.32%) React
11 14 (24.56%) JIRA
11 14 (24.56%) C#
12 12 (21.05%) Fixed Income
12 12 (21.05%) Derivative
12 12 (21.05%) Interest Rate Derivative
12 12 (21.05%) ZeroMQ
13 11 (19.30%) Agile Software Development
14 10 (17.54%) Apache
14 10 (17.54%) Subversion
14 10 (17.54%) Google
14 10 (17.54%) Apache Hive
14 10 (17.54%) Apache Cassandra
14 10 (17.54%) Kafka
14 10 (17.54%) Apache Spark
15 9 (15.79%) AngularJS
15 9 (15.79%) Apple iOS
15 9 (15.79%) Computer Science
16 8 (14.04%) Mathematics
16 8 (14.04%) Degree

JNI
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 10 (17.54%) Apache
1 10 (17.54%) Apache Spark
2 7 (12.28%) SharePoint
3 3 (5.26%) JBoss
3 3 (5.26%) WildFly
4 1 (1.75%) Ethereum
Applications
1 4 (7.02%) Microsoft Excel
Business Applications
1 6 (10.53%) ION MarketView
Cloud Services
1 5 (8.77%) Google Play
2 1 (1.75%) GitHub
Communications & Networking
1 7 (12.28%) Bluetooth
2 3 (5.26%) HTTP
2 3 (5.26%) SSH
2 3 (5.26%) VoIP
3 1 (1.75%) Broadband
3 1 (1.75%) SMS
Database & Business Intelligence
1 10 (17.54%) Apache Cassandra
1 10 (17.54%) Apache Hive
2 8 (14.04%) PostgreSQL
2 8 (14.04%) RDBMS
2 8 (14.04%) Relational Database
2 8 (14.04%) SQL Server
3 6 (10.53%) GIS
4 4 (7.02%) Berkeley DB
5 3 (5.26%) Geospatial Data
6 1 (1.75%) Blockchain
Development Applications
1 17 (29.82%) Git (software)
2 14 (24.56%) JIRA
3 10 (17.54%) Subversion
4 8 (14.04%) CppUnit
5 5 (8.77%) Gradle
6 3 (5.26%) Jenkins
7 2 (3.51%) Android Studio
8 1 (1.75%) Bitbucket
General
1 8 (14.04%) Finance
1 8 (14.04%) Front Office
2 3 (5.26%) Military
3 1 (1.75%) Advertising
3 1 (1.75%) Legal
3 1 (1.75%) Marketing
Job Titles
1 28 (49.12%) Software Engineer
2 26 (45.61%) Developer
3 12 (21.05%) C Software Engineer
3 12 (21.05%) C/C++ Software Engineer
3 12 (21.05%) C++ Software Engineer
4 11 (19.30%) Java Developer
5 9 (15.79%) Senior Software Engineer
6 7 (12.28%) C++ Developer
6 7 (12.28%) Principal Engineer
6 7 (12.28%) Principal Software Engineer
7 6 (10.53%) Android Developer
7 6 (10.53%) Electronic Trading Developer
7 6 (10.53%) Electronic Trading Java Developer
7 6 (10.53%) Embedded Engineer
7 6 (10.53%) Embedded Software Engineer
8 5 (8.77%) C/C++ Embedded Software Engineer
8 5 (8.77%) Embedded C/C++ Engineer
8 5 (8.77%) Embedded C/C++ Software Engineer
8 5 (8.77%) Embedded C++ Engineer
8 5 (8.77%) Embedded Linux Engineer
Libraries, Frameworks & Software Standards
1 15 (26.32%) React
2 12 (21.05%) ZeroMQ
3 10 (17.54%) Kafka
4 9 (15.79%) AngularJS
5 8 (14.04%) JDBC
5 8 (14.04%) ODBC
5 8 (14.04%) POSIX
5 8 (14.04%) REST
6 6 (10.53%) .NET
6 6 (10.53%) Android SDK
7 4 (7.02%) Angular 2
7 4 (7.02%) HTML
7 4 (7.02%) Java EE
7 4 (7.02%) Protocol Buffers
8 3 (5.26%) Apache Flex
8 3 (5.26%) HTML5
8 3 (5.26%) J2EE
8 3 (5.26%) Web Services
8 3 (5.26%) XMPP
9 1 (1.75%) EJB
Miscellaneous
1 12 (21.05%) Derivative
1 12 (21.05%) Fixed Income
1 12 (21.05%) Interest Rate Derivative
2 9 (15.79%) Computer Science
3 6 (10.53%) EMV
3 6 (10.53%) Equities
3 6 (10.53%) Foreign Exchange (FX)
3 6 (10.53%) Mobile App
3 6 (10.53%) Smartcard
4 5 (8.77%) EPoS
5 3 (5.26%) Virtual Team
6 2 (3.51%) User Experience
7 1 (1.75%) Algorithms
7 1 (1.75%) Analytical Skills
7 1 (1.75%) Bitcoin
7 1 (1.75%) Contactless
7 1 (1.75%) Fintech
7 1 (1.75%) Management Information System
Operating Systems
1 34 (59.65%) Linux
2 21 (36.84%) Windows
3 19 (33.33%) Android
4 9 (15.79%) Apple iOS
5 8 (14.04%) AIX
5 8 (14.04%) Solaris
5 8 (14.04%) Unix
6 4 (7.02%) openSUSE
6 4 (7.02%) Red Hat Enterprise Linux
6 4 (7.02%) SUSE
Processes & Methodologies
1 29 (50.88%) Software Engineering
2 18 (31.58%) SDLC
3 15 (26.32%) Multithreading
4 11 (19.30%) Agile Software Development
5 8 (14.04%) Mathematics
5 8 (14.04%) OO
6 7 (12.28%) Low Latency
6 7 (12.28%) Mobile Development
6 7 (12.28%) Scenario Testing
7 6 (10.53%) Android Development
7 6 (10.53%) Electronic Trading
8 5 (8.77%) MVC
8 5 (8.77%) Test Automation
9 4 (7.02%) Analytics
9 4 (7.02%) Risk Management
10 3 (5.26%) Continuous Delivery
10 3 (5.26%) Secure Coding
10 3 (5.26%) Security Operations
10 3 (5.26%) Software Delivery
10 3 (5.26%) Threat Modelling
Programming Languages
1 53 (92.98%) Java
2 49 (85.96%) C++
3 30 (52.63%) C
4 14 (24.56%) C#
5 7 (12.28%) FoxPro (VFP)
5 7 (12.28%) JavaScript
6 6 (10.53%) Objective-C
7 5 (8.77%) Bash Shell
7 5 (8.77%) Embedded C
7 5 (8.77%) Embedded C++
8 4 (7.02%) SQL
8 4 (7.02%) VBA
9 3 (5.26%) ActionScript
9 3 (5.26%) Groovy
9 3 (5.26%) Kotlin
10 1 (1.75%) PHP
Qualifications
1 8 (14.04%) Degree
2 3 (5.26%) Computer Science Degree
2 3 (5.26%) Security Cleared
Quality Assurance & Compliance
1 7 (12.28%) QA
Systems Management
1 4 (7.02%) Grafana
1 4 (7.02%) Graphite
Vendors
1 10 (17.54%) Google
2 8 (14.04%) Oracle
3 6 (10.53%) ION Trading
4 1 (1.75%) Apple